Emily778
Which theorem or postulate proves the two triangles are similar?



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Emily778
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RadEn
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SSA

Emily778
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you mean SAS?

RadEn
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yeah, that's same

ganeshie8
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this is same as previous question, i would tick AA similarity

Emily778
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tHANKS

jim_thompson5910
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it's neither SSA or AA

jim_thompson5910
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and it's not SAS


ganeshie8
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how ?

jim_thompson5910
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actually..hmm I guess you could use AA, nvm
but SSS works too

Emily778
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What is it?? :(

ganeshie8
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you mean SAS works too ?

jim_thompson5910
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no SSS

jim_thompson5910
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that page I posted explains

jim_thompson5910
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from that page
"SSS Similarity Theorem
This theorem states that if the sides of two triangles are in proportion, then the triangles are similar."

Emily778
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so, it's SSS?

ganeshie8
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no jim, all 3 pairs of sides need to form a proportion for SSS to work

jim_thompson5910
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SSS would have been my first choice....but AA works as well (you need to do a bit of work, not much though)

jim_thompson5910
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actually you just need 2 pairs and SSS works

Emily778
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This is worth a lot of points... :(

ganeshie8
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all 3 pairs of sides need to have same ratio, jim. only 2 side ratios matching wont do for SSS

jim_thompson5910
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hmm this page is odd, they use SSS first, then SAS
nvm, i guess it's not accurate
go for AA

ganeshie8
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dw:1370501429912:dw

jim_thompson5910
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good point ganeshie8

ganeshie8
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ty jim :)
